SOLUTION: Determine the area of a 12 inch pizza and a 16 inch pizza. Assuming they are the same thickness, which is the better buy if the 12 inch large sells for $9 , while the extra large 1

Question 1033326: Determine the area of a 12 inch pizza and a 16 inch pizza. Assuming they are the same thickness, which is the better buy if the 12 inch large sells for $9 , while the extra large 16 inch sells for $14?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Let's try to calculate the number of cents per square inch for each to find the better buy...
For the 12 inch...its radius is 6 in...area = (pi)*6^2 = 113.1 sq in
So $9 = 900 cents...900/113.1 = 7.96 cents per sq in
For the 16 inch...its radius is 8 in...area = (pi)*8^2 = 201.1 sq in
So $14 = 1400 cents...1400/201.1 = 6.96 cents per sq in
Thus the larger pizza is the better buy since its cost is cheaper per square inch.
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